The study on secondary isochron of anomalous lead is a very important problem in the common lead isotope geology.

异常铅二次等时线是普通铅同位素地质学研究中非常重要的一个课题。

youdao

CE. In Japan, while tubular beads are the most common lead-barium glass artefacts, other objects, including bi discs, eye-beads and comma-shaped beads, also exist.

在日本，虽然管状珠是最常见的铅钡玻璃文物，其它的物品，包括璧，球形玻璃珠及逗号型玻璃珠，也同样存在。

youdao

If electromagnetic pulse valve is not always magnetized, it must be checked if the connection outside of the terminal of common lead of the valve is correct and reliable.

若电磁脉冲阀全部不吸，应检查阀用公共线端子外的接线是否正确可靠。

youdao

In the past,many common household were recruited items contained lead, everything from water pipes, to drinking vessels, to eating utensils.

VOA: standard.2009.12.19

It revealed little about how minute genetic variations among people can lead to common diseases.

FORBES: On The Cover/Top Stories

While EU nations have made a great progress in pulling their resources together, they do remain a collection of capricious brides that find hard to lead a common life, a situation that can turn worse as European economies face a full-blown recession.

FORBES: EU: A Collection of Capricious Brides

D. level climate scientists that work at Columbia University's Earth Institute and even if you do not understand the physics of climate change or the computer models predicting global warming, common sense alone might lead you to think that human beings and their machines are making the planet warmer.

CNN: Why we should expect more weather disasters